He is clinical associate professor with the Department of Pulmonary and Critical Care Medicine at West Virginia University School of Medicine and is an Honorary Senior Lecturer in Pathology at National University of Ireland,
Prof. Hartel is currently a Clinical Lead Consultant Histopathologist at Sligo University Hospital, Sligo, Ireland. He has served as Medical Director of Clinical Laboratory Medicine with several acute care hospitals and held leadership positions as Chief of Medical Staff and Chairman of several quality committees. He is a clinical associate professor with the Department of Pulmonary and Critical Care Medicine at West Virginia University School of Medicine and is an Honorary Senior Lecturer in Pathology at the National University of Ireland, Galway, School of Medicine. He is active in teaching and research endeavors, particularly in general histopathology, neoplastic and non-neoplastic lung disease, and sarcomas. He has numerous publications and has been invited to speak about his research nationally and internationally. He has also served as an expert witness and consultant for Irish and US law firms. Dr. Hartel is a Diplomate of the American Board of Pathology and Fellow of the Royal College of Physicians in Ireland and a Fellow of the Faculty of Pathology, RCPI, College of American Pathologists, and American Society of Clinical Pathology. Expertise lies principally in surgical pathology, pulmonary pathology, and autopsy pathology.